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          YCR9910F DC Resistance Tester

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           I. General
          The measurement of DC resistance is a necessary item infactory test, installation, hand-over test, and preventive test for semi-finished products and finished products during the manufacture of voltage transformers, current transformers, reactors, electromagnetic actuators and other inductive coils in power departments, with which, the manufacturing defects on material selection, welding,joint loosening, strand missing, broken wires and others and hidden dangers under operationcan be identified effectively. In order to satisfy the need for rapid measurement for DC resistance of inductive coils, a DC resistance tester has been developed with our technical advantages. It is applied with a new power supply technology and has a small size, light weight, large output current, wide measurement range, digital display, two power modes of mains and internal lithium battery and other features. The whole tester is controlled with a single-chip microcomputer and can automatically perform self-test, data processing, display and other functions. It has an automatic discharge and discharge indication functions, as well as high test accuracy and easy operation, and can realize the rapid measurement for DC resistance.

          II. Safety Measures
           

          1. Must read this manual carefully before use of this tester.
          2. This tester can be used indoor and outdoor other than in places with rain, corrosion gas and etc. Do not cause any violent vibration of the tester.
          3. The tester must be repaired, maintained and adjusted by the professional personnel.
          4. After test, must turn off the power supply and then remove the test wire until the discharging alarm stops.
          5. A no-load regulating transformer can be measured after the discharging alarm stops; during the measurement process, do not perform any switching operation.
          6. During the test, do not move test clips and the power lines.

           
          III. Performance Features
           

          1. This tester has large output current, light weight and other features.
          2. This tester can provide 6 output current selections and the maximum output can be up to 10A.
          3. This tester has a wide measurement range (0.5mΩ-100KΩ), and the resistance temperature can be conversion with the set temperature.
          4. This tester is provided with a perfect protection circuit, with more reliable test performances.
          5. This tester is supplied with a lithium-ion battery, with easy on-site operations.
          6. This tester has a sound discharge alarm to reduce any error operation.
          7. This tester can be supplied in AC and DC modes, to meet the measurement requirements on different sites.
          8. This tester is equipped with a 4.3-inch color LCD display, with 480×272 TFT true color screen, Chinese operation menu, and real-time output print functions.
          9. This tester is equipped with RS485, used to transmit the test data to the background.
          10. This tester has a large storage capacity, and can store up to 200 test records.
          11. This tester is equipped with USB ports, used to transfer the test data to a U disk.
          12. The parameter settings on this tester are more perfect; test winding, tap position, test phase, sample temperature and conversion temperature of the transformer can be set.

           
          IV. Technical Indicators
           

          1. Output current: 10A, 5A, 1A, 200mA, 40mA, 5mA, automatic setting.
          2. Measurement range: 0.5mΩ-1.6Ω (10A position)
          30mΩ-3.2Ω(5A position)
          60mΩ-16Ω(1A position)
          100mΩ-80Ω(200mA position)
          300mΩ-400Ω(40mA position)
          100Ω-100kΩ(5mAposition)
          3. Accuracy: 0.2%±2μΩ
          4. Resolution: 0.1μΩ
          5. Operating temperature: -20 ~ 40℃
          6. Ambient humidity: ≤80%RH; no condensation
          7. Altitude: ≤1000meters
          8.Operating power supply: Rechargeable DC lithium battery; AC220V mains
          9. Dimensions: 323 * 275 * 135 mm
          10. Total mass: 5.28kg

           

           

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